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Electro-optic device

  • US 4,671,619 A
  • Filed: 07/09/1985
  • Issued: 06/09/1987
  • Est. Priority Date: 07/24/1984
  • Status: Expired due to Term
First Claim
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1. An electro-optical device comprising an electrochemical material layer and an electrolytic solution interposed between mutually opposed base plates, each having an electrode on the surface thereof, wherein said electrolytic solution consists essentially of:

  • (a) an iodide source material as a redox reaction promoter selected from the group consisting of metal iodides an ammonium iodides, and(b) a lactone solvent capable of dissolving the redox reaction promoter, with the proviso that when the iodide ion source material is not also a metal cation source, a cation source material which is capable of generating H+ or Li+ ions is further added.

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